Abstract: An automatic analysis system that, even if one module out of a plurality of analysis modules becomes analysis-incapable, allows the analysis to be continued without stopping the entire system. The automatic analysis system has a plurality of analysis modules 5, 6, 7, and 8, and a transferring line 3 for transferring specimens to these analysis modules. During the analysis operation by the entire system, each analysis module is controllable as a standby state, namely, as a single-body analysis module in a state of being independent and being cut off from the control of the entire system.